CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (unaudited) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2016		Jun. 30, 2015	Jun. 30, 2016		Jun. 30, 2015
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
NET INCOME	$ 544	[1]	$ 720	$ 1,198	[1]	$ 1,371
Net unrealized gains (losses) on cash flow hedges:
Effective portion of net unrealized gains (losses) (net of $26 tax expense and less than $1 tax benefit, respectively)	0		40	0		(11)
Reclassification from accumulated other comprehensive loss to net income (net of $10, $12, $23 and $16 tax expense, respectively)	13		22	36		39
Net unrealized gains (losses) on available for sale securities:
Net unrealized gains (losses) on securities still held (net of $12 tax expense, $5 tax benefit, $19 and $4 tax expense, respectively)	17		(7)	25		5
Reclassification from accumulated other comprehensive loss to net income (net of $3, $2, $4 and $9 tax benefit, respectively)	(5)		(3)	(6)		(13)
Defined benefit pension and other benefits plans (net of $4 and $10 tax benefit, respectively)	0		0	(7)		(16)
Net unrealized gains on foreign currency translation (net of $1, $9, $1 and $17 tax expense, respectively)	8		15	28		29
Other comprehensive income (loss) related to equity method investee (net of $1 tax benefit, $1 tax expense, $3 tax benefit and less than $1 tax expense, respectively)	(1)		3	(4)		1
Total other comprehensive income, net of tax	32		70	72		34
COMPREHENSIVE INCOME	576		790	1,270		1,405
LESS COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO NONCONTROLLING INTERESTS	5		5	(8)		3
COMPREHENSIVE INCOME ATTRIBUTABLE TO NEE	$ 571		$ 785	$ 1,278		$ 1,402

[1] Reflects the adoption in the second quarter of 2016 of an accounting standards update. See Note 6 - Stock-Based Compensation.